HIGH FREQUENCY FILTER AND PHASED ARRAY ANTENNA COMPRISING SUCH A HIGH FREQUENCY FILTER

    公开(公告)号:EP3621146A1

    公开(公告)日:2020-03-11

    申请号:EP18192512.4

    申请日:2018-09-04

    申请人: Gapwaves AB

    发明人: BENCIVENNI, Carlo

    IPC分类号: H01P1/208

    摘要: A high frequency filter comprising a waveguide and at least one resonant cavity is disclosed. The waveguide is a so-called gap waveguide, and comprises a metal or metallized base layer, a lid arranged in parallel with said metal or metallized baser layer, a waveguiding structure in the form of a ridge, a groove or a microstrip line, and an artificial magnetic conductor arranged on said base layer, between the baser layer and the lid, and arranged aligned with said waveguding structure to prevent waveguide propagation along other directions than along said waveguide structure. The filter further comprises at least one resonant cavity arranged within said baser layer, and extending essentially perpendicular to a plane of said baser layer. The filter may e.g. be used in a phased array antenna.